Requirements for Creating a Report
To create a report, only two things are required:
need data from which to report. If the data is protected by an underlying security
system, you may need permission to report from the data source.
In addition, the server must be able to locate the data
source. For more information on data source locations, see the Developing Reporting Applications manual.
can report from many different types of data sources (with variations
for different operating environments), including the following:
data sources, such as DB2, Teradata, Oracle, and Sybase.
data sources, such as IMS and FOCUS.
- Indexed data
sources, such as ISAM and VSAM.
- Network data
sources, such as CA-IDMS.
data sources, both fixed-format and delimited format.
- Multi-dimensional data sources,
such as SAP BW and Essbase.
- XML data sources.
For a complete list, see the Describing Data With Graphical Tools manual.
A data description. You
need a Master File, which describes the data source from which you
are reporting. The Master File is a map of the segments in the data
source and all of the fields in each segment. For some types of
data sources, the Master File is supplemented by an Access File.
For more information on Master Files and Access Files, see the Describing Data With Graphical Tools manual.
looking at the Master File, you can determine what fields are in
the data source, what they are named, and how they are formatted.
You can also determine how the segments in the data source relate
to each other. Although you can create a very simple report without
this information, knowing the structure of the data source enables
you to generate creative and sophisticated reports.
supplement the information in the Master File by generating a picture
of the data source structure (that is, of how the data source segments
relate to each other). Use the following command:
CHECK FILE filename PICTURE RETRIEVE
the picture, segments are shown in the order in which they are retrieved.
Four fields of each segment appear.